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Reviews & Ratings for Guntec USA AR-10/LR-308 Full Size A2 Rifle Buffer Spring Set — 3 reviews

(3 reviews)
Guntec USA AR-10/LR-308 Full Size A2 Rifle Buffer Spring Set
Guntec USA AR-10/LR-308 Full Size A2 Rifle Buffer Spring Set
$47.49 $39.99 Save 16%
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Most Helpful Negative Review Not an AR-10/LR 308 Buffer - actually an AR-15 A2 rifle buffer in disguise.
This is an AR-15 a rifle buffer being packaged as an AR-10/LR-308 buffer. Spring seems to be the right length and number of turns but the buffer is a full 6" long and too long to allow the BCG to engage the follower in the mag to hold the bolt open (308 buffer should be around 5.25" due to longer BCG) Also causes some flaky feeding at times. At first I thought it was a weight issue with the buffer until I realized that it was the same length as the A2 buffer I bought it to replace. The only difference between the buffers is the color of the metal they are made out of. Same exact weights and le...
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THIS IS AN ar 15 BUFFER,

by kERRY, from WI, United States Written on October 15, 2021
ar15 AND ar10 RIFLE BUFFERS ARE NOT THE SAME. ar10 IS 5-5/16" LONG, ar 15 IS 5.8" LONG AND DOES NOT WORK IN AN ar10!!!

ar15 AND ar10 RIFLE BUFFERS ARE NOT THE SAME. ar10 IS 5-5/16" LONG, ar 15 IS 5.8" LONG AND DOES NOT WORK IN AN ar10!!!
ar15 AND ar10 RIFLE BUFFERS ARE NOT THE SAME. ar10 IS 5-5/16" LONG, ar 15 IS 5.8" LONG AND DOES NOT WORK IN AN ar10!!!
Would recommend: No
1 of 1 found the following review helpful.
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Buffer too long

by Stallion, Verified Owner from CO, United States Written on December 7, 2016
Same experience as the previous reviewer. Buffer is too long preventing the BCG from travelling back the required distance. Otherwise it is of expected quality for GUNTEC stuff, however like the previous reviewer I am out of my return date as I wanted on other parts for my build. Going with a JP captured like I should of in the first place.
Pros:
  • Quality built
Cons:
  • None
Would recommend: No
2 of 2 found the following review helpful.
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Last updated 2025-11-12 UTC.